Nickel(II) hydroxide (Ni(OH)₂) is an inorganic ceramic compound and hydroxide mineral commonly used as a precursor material and electrochemical component in rechargeable battery systems. It serves as a key cathode material in nickel-metal hydride (NiMH) batteries and alkaline battery chemistries, where its layered crystal structure enables reversible oxidation-reduction reactions. Engineers select this material for energy storage applications where cost-effectiveness, cycle life, and environmental stability are priorities over high specific energy density, making it particularly valuable in portable power tools, emergency lighting, and hybrid electric vehicle auxiliary batteries.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Dielectric Constant (Relative Permittivity)(εr) | 6.060 | - | DFT · PBE | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Piezoelectric Modulus(eij) | 0.7124 range 0.4646–0.9602median of 2 measurements | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data